v0.6.0

What's New

OpenAlex Integration (Stage 1b)

• 250M+ works across all disciplines with best-in-class preprint-to-published version tracking
• Looks up by arXiv ID first, falls back to DOI
• Rate limiting at 100 req/sec (OpenAlex polite pool)

Europe PMC Integration (Stage 1c)

• Life science specialist for bioRxiv/medRxiv preprints
• Only activates for bioRxiv/medRxiv entries (gated by 10.1101/ DOI prefix or journal name)
• Title+author search with SRC:MED filter and fuzzy match validation
• Rate limiting at 20 req/sec

Updated Resolution Pipeline

1. arXiv → Semantic Scholar / Crossref DOI lookup
   1b. OpenAlex lookup ✨ NEW
   1c. Europe PMC lookup (bioRxiv/medRxiv only) ✨ NEW
2. Crossref is-preprint-of relations
3. DBLP bibliographic search
   3b. ACL Anthology
4. Semantic Scholar search
5. Crossref bibliographic search
6. Google Scholar (opt-in)

Documentation

• New docs/LANDSCAPE.md — comprehensive ecosystem documentation covering integrated databases, evaluated-but-not-integrated databases (with reasoning), competing tools, and citation verification services

Tests

• 31 new tests (583 total, all passing)

Full Changelog: v0.5.1...v0.6.0